Question

Is x=-3, solution of the equation 2x²+5x+3=0.

Answer 1

the answer is 6 if -3 is x.

Answer 2

No

Explanation:

If x = - 3 is a solution to the equation, then the value of the equation should equal zero when x = - 3 is substituted into the left side, that is

2(- 3)² + 5(- 3) + 3

= 18 - 15 + 3

= 6 ≠ 0

Hence x = - 3 is not a solution of the equation